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1288430106 = 23534051667
BaseRepresentation
bin100110011001011…
…1110001000011010
310022210102000211120
41030302332020122
510114314230411
6331503310110
743633321665
oct11462761032
93283360746
101288430106
11601315677
122bb5ab336
13176c169a2
14c318c6dc
15781a7106
hex4ccbe21a

1288430106 has 16 divisors (see below), whose sum is σ = 2625480864. Its totient is φ = 421373264.

The previous prime is 1288430093. The next prime is 1288430131. The reversal of 1288430106 is 6010348821.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2025516 + ... + 2026151.

It is an arithmetic number, because the mean of its divisors is an integer number (164092554).

Almost surely, 21288430106 is an apocalyptic number.

1288430106 is an abundant number, since it is smaller than the sum of its proper divisors (1337050758).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1288430106 is a wasteful number, since it uses less digits than its factorization.

1288430106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4051725.

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 1288430106 is about 35894.7086072585. The cubic root of 1288430106 is about 1088.1454607681.

Adding to 1288430106 its reverse (6010348821), we get a palindrome (7298778927).

The spelling of 1288430106 in words is "one billion, two hundred eighty-eight million, four hundred thirty thousand, one hundred six".

Divisors: 1 2 3 6 53 106 159 318 4051667 8103334 12155001 24310002 214738351 429476702 644215053 1288430106